I used to work at an accounting/consulting firm who were dead set on writing business applications in VBA within Excel. The code was embedded in the notebook, and to distribute the software was sending the latest version of the Excel file. This made version control virtually impossible, and we would instead combine our work manually.

I cannot recommend having tech-illiterate people lead software projects.

IIRC he took a second mortgage on his house to fund it. He also has a cameo in the movie.

Harrison and Eric Idle were good friends, and Harrison even appeared in Eric Idles Beatles parody movie.